package class01;

import java.util.Arrays;

/**
 * @author zhangchaoliang
 * create 2022
 */
public class I3 {

    public static void InsertionSort(int[] arr){
        if(arr == null||arr.length<2)
            return;
        for (int i=1;i<arr.length;i++){
            for (int j=i-1;j>=0&&arr[j]>arr[j+1];j--)
                swap(arr,j,j+1);
        }
    }

    public static void swap(int[] arr,int i,int j){
        int tmp = arr[i];
        arr[i] = arr[j];
        arr[j] = tmp;
    }

    public static void comparation(int[] arr){
        Arrays.sort(arr);
    }

    public static int[] RandomArrays(int maxSize,int maxValue){
        int[] arr = new int[(int)((maxSize+1)*Math.random())];
        for (int i=0;i<arr.length;i++){
            arr[i] = (int)((maxValue+1)*Math.random())-(int)((maxValue+1)*Math.random());
        }
        return arr;
    }

    public static int[] copyArrays(int[] arr){
        if(arr==null)
            return null;
        int[] arr1 = new int[arr.length];
        for (int i=0;i<arr.length;i++)
            arr1[i]=arr[i];
        return arr1;
    }

    public static boolean isEqual(int[] arr1,int[] arr2){
        if(arr1==null && arr2==null)
            return true;
        if ((arr1!=null&&arr2==null)||(arr1==null&&arr2!=null))
            return false;
        if (arr1.length!=arr2.length)
            return false;
        for (int i = 0;i<arr1.length;i++){
            if (arr1[i]!=arr2[i])
                return false;
        }
        return true;
    }

    public static void printArrays(int[] arr){
        if(arr==null)
            return;
        for(int i=0;i<arr.length;i++)
            System.out.print(arr[i] + " ");
        System.out.println();
    }

    public static void main(String[] args) {
        int testTime = 500000;
        int maxSize = 100;
        int maxValue=100;
        boolean successed = true;

        for (int i =0;i<testTime;i++){
            int[] arr1 = RandomArrays(maxSize,maxValue);
            int[] arr2 = copyArrays(arr1);

            InsertionSort(arr1);
            comparation(arr2);

            if(!isEqual(arr1,arr2)){
                successed=false;
                printArrays(arr1);
                printArrays(arr2);
                break;
            }
        }
        System.out.println(successed?"成功！":"失败！");
    }
}
